參數(shù)資料
型號(hào): SDA5254
廠商: SIEMENS A G
元件分類: 圖文
英文描述: 8-BIT SINGLE CHIP MICROCONTROLLERS
中文描述: TELETEXT AND VPS/PDC DECODER, PDIP52
文件頁數(shù): 131/143頁
文件大?。?/td> 1050K
代理商: SDA5254
SDA 525x
Semiconductor Group
131
1998-04-08
7.3
AC-Characteristics
External Clock Drive XTAL1 / Quartz Clock Drive XTAL1 - XTAL2
Table 35
T
A
= 0 to 70
°
C;
V
DD
= 5 V
±
10 %,
V
SS
= 0 V (
C
L
= 80 pF)
Parameter
Figure 39
External Clock Cycle
Symbol
Limit Values
Fixed internal Clock
1/
t
CLCL
= 18 MHz
min.
6
t
CLCL
55.6
13
13
Unit
max.
Cycle time
Address out to valid instr in
Oscillator period
External clock high time
External clock low time
External clock rise time
External clock fall time
t
CY
t
AVIV
t
CLCL
t
CHCX
t
CLCX
t
CLCH
t
CHCL
2.3. x
t
CLCL
13
13
ns
ns
ns
ns
ns
ns
ns
UED04735
CHCX
t
0.7
0.2
V
DD
V
DD
-0.1
-0.5
V
DD
t
CLCX
CLCL
t
t
CLCH
CHCL
t
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